Enclosure NEMA Rating 1, Material of Enclosure Carbon Steel, 12 in, Hinged Enclosure Cover Type, Solid / Clear Cover Solid, Closure Method Screwdown Clamps, Finish ANSI 61 Polyester Powder, Color Gray, Depth 4 in, Enclosure Cover Features Clamps, Features Mounting Holes, Height 18 in, Metal Gauge 16 ga, Wall Mounting, Series A, Standards cULus, Usable Opening Depth 3.88 in, Width 12 in